CN206772282U - Offshore wind power foundation absolute settlement monitoring device - Google Patents
Offshore wind power foundation absolute settlement monitoring device Download PDFInfo
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- CN206772282U CN206772282U CN201720673913.9U CN201720673913U CN206772282U CN 206772282 U CN206772282 U CN 206772282U CN 201720673913 U CN201720673913 U CN 201720673913U CN 206772282 U CN206772282 U CN 206772282U
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Abstract
Offshore wind power foundation absolute settlement monitoring device, including:Multiple earth pressure gauges on the outer wall of blower fan stake, close to pile foundation bottom, ventage piezometer installed in blower fan stake bottom, stationary slope level installed in the inside of blower fan stake, stationary slope level is encapsulated in inside inclinometer pipe, installed in multiple steel plate stressometers of the top exterior walls of blower fan stake, multiple two installed in the inwall in blower fan stake top portion connect measuring instrument to accelerometer, the earth pressure gauge, ventage piezometer, stationary slope level, steel plate stressometer, two to accelerometer.The device also includes an electronic level, and the electronic level is used to measure the 1# settlement points being arranged symmetrically in blower fan stake, 2# settlement points, 3# settlement points, the reading of 4# settlement points.The utility model can solve the problem that the technological difficulties of current offshore wind turbine foundation safety evaluation, have important construction value and popularizing application prospect.
Description
Technical field
Offshore wind power foundation monitoring technical field is the utility model is related to, specifically a kind of offshore wind power foundation absolute settlement
Monitoring device.
Background technology
With the quickening of offshore wind farm exploitation paces, offshore distance, the depth of water, blower fan pile foundation diameter are increasing, basis
The probability increase of larger sedimentation and deformation occurs, it is stronger for the technical need of the high-precision Foundation Settlement Monitor of development.It is existing
Foundation deformation monitoring technology has：1）Gradient monitoring is carried out using obliquity sensor；2）Blower fan is carried out using leveling observation technology
The settlement monitoring on basis；3）Displacement monitoring is carried out using dynamic or static GPS technology.
Obliquity sensor is easy for installation, can easily obtain the gradient of sensor position, be applied at present
Offshore wind power foundation monitors.Its major defect is：1）, the absolute settlement amount on basis can not be obtained, can only obtain and relative incline
Angle situation of change；2）, obliquity sensor belong to electronic device, aging, drifting problem under severe marine environment be present, it has
Projected life of the life-span much smaller than blower foundation is imitated, certain maintenance be present, change workload；3）, current blower fan deformation prison
Survey, often arrange a number of obliquity sensor along tower height, it is larger calculation error to be present when calculating blower fan tower top displacement
Problem.Therefore, obliquity sensor monitoring method can only partly monitor blower foundation relative deformation character, fail to realize blower fan base
Plinth absolute deformation monitors.Land wind power plant carries out foundation deformation monitoring frequently with leveling observation method, preferably becomes if set
Shape monitoring criteria point, then it is capable of the absolute settlement monitoring of optimized integration.But for marine wind electric field, it is difficult at sea set
Stable Deformation Monitoring Datum point, and distance is big between marine wind electric field fan, and stormy waves factor is very big on observation error influence,
This method can not at sea implement deformation monitoring.
Either statically or dynamically GPS technology is a kind of efficient, advanced technology for deformation monitoring, is widely used in large-scale side slope, water
Sharp hinge, large-scale build（Structure）The deformation monitoring of thing is built, there is some superiority in the monitoring to land important engineering.This method will
The distance between observation station is asked not to be preferably greater than 5km, it is equilateral triangle that the observational network formed, which is tried one's best, with datum mark and observation
The increase of distance between point, observation error can be in that geometric progression increases.The general offshore of marine wind electric field is distant, using GPS
Technology can not meet the required precision of offshore wind power foundation deformation monitoring.
The content of the invention
In order to solve the above technical problems, the utility model provides a kind of offshore wind power foundation absolute settlement monitoring device, energy
Enough solve the technological difficulties of current offshore wind turbine foundation safety evaluation, there is important construction value and popularizing application prospect.
The technical scheme that the utility model is taken is：
Offshore wind power foundation absolute settlement monitoring device, the device include：
Multiple earth pressure gauges on the outer wall of blower fan stake, close to pile foundation bottom；
Ventage piezometer installed in blower fan stake bottom；
Stationary slope level installed in the inside of blower fan stake, stationary slope level are encapsulated in inside inclinometer pipe；
Installed in multiple steel plate stressometers of the top exterior walls of blower fan stake；
Installed in blower fan stake top portion inwall multiple two to accelerometer；
The earth pressure gauge, ventage piezometer, stationary slope level, steel plate stressometer, two connect to accelerometer to be measured
Instrument；
The blower fan stake is provided with obliquity sensor, obliquity sensor connection measuring instrument；
The blower fan stake is provided with the first displacement transducer, second displacement sensor is provided with blower fan tower barrel, and described the
One displacement transducer, second displacement sensor are all connected with measuring instrument；
The device also includes an electronic level, and the electronic level, which is used to measure, to be arranged symmetrically in blower fan stake
1# settlement points, 2# settlement points, 3# settlement points, the reading of 4# settlement points.
The measuring instrument includes signal acquisition process module, main control module, GSM message module, d GPS locating module, nothing
Line transmitter module, LCD display module；The main control module is fixed with signal acquisition process module, GSM message module, GPS respectively
Position module, wireless transmitter module, the connection of LCD display module.
The signal acquisition process module includes signal amplification circuit, signal filter circuit, A/D change-over circuits, the letter
Number amplifying circuit uses MAX4196 chips, realizes the amplification of sensor detection signal；The signal filter circuit is low using second order
Logical ButterWorth filter circuits, filter out other interference noises in sensor signal；The A/D change-over circuits use
ADC0808 chips, realize the numeral conversion of sensor detection signal.
The GSM message module uses the TC53i modules of Siemens Company, realizes and is connected with main control module communication, is used for
Data are sent an SMS into monitoring personnel by GSM.
The wireless transmitter module is wifi wireless communication modules or Zigbee wireless communication modules, and monitor center is set
There is wireless receiving module, for monitoring data to be uploaded into monitoring center.
The main control module uses ARM one-chip computer modules.
On the inwall of the blower fan stake, communication cable is embedded with by cable casing.
A kind of offshore wind power foundation absolute settlement monitoring device of the utility model, technique effect are as follows：
1：Obtain the Compressive Bearing Capacity value of blower fan stake, obtain pile shaft force distribution and stake week each rock-soil layer side under finder charge
Frictional resistance, end resistance；Pile end displacement, pile body elastic compression etc.；Obtain steel-pipe pile vertical ultimate uplift resistance of single pile value, tried
Test each rock-soil layer resistance to plucking side friction and resistance to plucking reduction coefficient etc. under load；Obtain steel-pipe pile horizontal bearing capacity of single pile value, actual measurement
Each rock-soil layer horizontal resist forces characteristic, bending, pile deflection etc. under finder charge；Blower fan stake pile end block effect etc. is analyzed,
Foundation is provided for the optimization design and large-area construction of pile foundation.
2nd, high-strain dynamic pegging, by analyzing stake caused power and acceleration under impact force action, it is determined that the axle of stake
Pile body stress and wink when to bearing capacity, evaluating pile body integrity, and analyzing the resistance distribution of soil, the performance indications of pile monkey, piling
When settling character, and bearing capacity result and static load test result are contrasted.
3rd, by blower fan static load test for pile and high strain monitoring achievement, quiet, dynamic pile testing correlation data is obtained, is engineering
Stake detection provides foundation.
4：According to the test result of pile body earth pressure gauge, stake week pore water pressure sensor, single make-up static load test is aided in
Back analysis.
5：According to the inclination angle Monitoring Result of blower foundation, from the angle of relative inclination development, logarithm value computation model is carried out
Check checking.
6：Pass through numerical computations, in the case of various environmental loads, geological conditions are discussed, the stress of single pile or multi-column pier foundation
Field, displacement field, evaluate the rule and development trend of pile foundation sedimentation and deformation.
7：Main control module connects d GPS locating module, can timely allow monitoring personnel to know monitoring place, be easy to implement more
The fixed point monitoring of individual offshore wind power foundation.
8：Main control module connects GSM message module, and the handheld terminal communication of GSM message module and monitoring personnel connect, prison
Survey personnel can know monitoring information in time by handheld terminal.
9：Main control module sends monitoring information by wireless transmitter module, to monitoring center, monitoring place, time, position,
It is easy to generate historical record.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is scheme of installation one of the present utility model（Top view）.
Fig. 2 is scheme of installation two of the present utility model（Front view）.
Fig. 3 is module connection diagram of the present utility model.
Fig. 4 is settlement point observation schematic diagram of the present utility model.
Embodiment
As shown in Figure 1-Figure 3, offshore wind power foundation, including blower fan stake 1, the blower fan stake 1 use steel-pipe pile, blower fan stake 1
Bottom is provided with annular load box 2, and the annular bottom of load box 2 is provided with coxopodite counter-force stake 3.Described 1 outer rim of blower fan stake, four angles
It is respectively arranged with the first reference stake pillar stake 19, the second reference stake pillar stake 20, the 3rd reference stake pillar stake 21, the 4th reference stake
Pillar stake 23.Be respectively installed with inside the first reference stake pillar stake 19, the 3rd reference stake pillar stake 21 first reference stake 18,
Second reference stake 22.The first reference stake pillar stake 19, the second reference stake pillar stake 20, the 3rd reference stake pillar stake 21,
The top of four reference stake pillar stakes 23 is fixed with lateral fiducial beam 16, longitudinal datum line beam 17, the lateral fiducial beam 16, longitudinal base
Quasi- beam 17, the top braces of blower fan stake 1 are fixed with accommodation platform 10.The side of blower fan stake 1 be provided with more inclination anchoring piles 12,
More straight anchoring piles 13；The inclination anchoring pile 12, the top of straight anchoring pile 13 are installed with counter-force platform 11.
The stake footpath of the blower fan stake 1 is 5500-5800mm, and overall length wall thickness is 70mm, and always processing is grown for the blower fan stake 1
Spend for 70-71m, wherein embedded depth 45-47m, into silty sand ground.First reference stake 18, the second reference stake 22 use phase
Same steel-pipe pile, a diameter of 900mm, wall thickness 15mm；The first reference stake pillar stake 19, the second reference stake pillar stake 20,
3rd reference stake pillar stake 21, the 4th reference stake pillar stake 23 all use steel-pipe pile, and stake footpath is 1400mm, wall thickness 20mm.Institute
It is respectively 6 and 4 to state and tilt anchoring pile 12, the quantity of straight anchoring pile 13, all using steel-pipe pile.It is described tilt anchoring pile 12 slope be
5:1, wherein embedded depth 33-35m, into layer silt silty sand ground.
When the total amount of pile of unit is below 500, blower fan stake should not be less than 2, if Wind Power Project is intended using 100 lists
Machine capacity is 3MW Wind turbines, and total amount of pile is 100, therefore, drafts blower fan stake quantity as 1, while with engineering test pile base
Plinth is life platform base.
Above-mentioned offshore wind power foundation, tested especially suitable for 300MW offshore wind farms, by taking the wind power foundation as an example：
A kind of offshore wind power foundation absolute settlement monitoring device of the utility model, the device include：
Multiple earth pressure gauges 5 on the outer wall of blower fan stake 1, close to pile foundation bottom；
Ventage piezometer 6 installed in the bottom of blower fan stake 1；
Stationary slope level 4 installed in the inside of blower fan stake 1, stationary slope level 4 are encapsulated in inside inclinometer pipe；
Installed in multiple steel plate stressometers 8 of the top exterior walls of blower fan stake 1；
Installed in the top of blower fan stake 1 inwall multiple two to accelerometer 9；
The earth pressure gauge 5, ventage piezometer 6, stationary slope level 4, steel plate stressometer 8, two connect to accelerometer 9
Measuring instrument 24；
The blower fan stake 1 is provided with obliquity sensor 25, and obliquity sensor 25 connects measuring instrument 24；
The blower fan stake 1 is provided with the first displacement transducer 26, is provided with second displacement sensor on blower fan tower barrel, described
First displacement transducer 26, second displacement sensor are all connected with measuring instrument 24；
The device also includes an electronic level, and the electronic level is arranged symmetrically in blower fan stake 1 for measurement
1# settlement points, 2# settlement points, 3# settlement points, the reading of 4# settlement points.
The measuring instrument 24 include signal acquisition process module, main control module, GSM message module, d GPS locating module,
Wireless transmitter module, LCD display module；The main control module respectively with signal acquisition process module, GSM message module, GPS
Locating module, wireless transmitter module, the connection of LCD display module.
The signal acquisition process module includes signal amplification circuit, signal filter circuit, A/D change-over circuits, the letter
Number amplifying circuit uses MAX4196 chips, realizes the amplification of sensor detection signal；The signal filter circuit is low using second order
Logical ButterWorth filter circuits, filter out other interference noises in sensor signal；The A/D change-over circuits use
ADC0808 chips, realize the numeral conversion of sensor detection signal.
The GSM message module uses the TC53i modules of Siemens Company, realizes and is connected with main control module communication, is used for
Data are sent an SMS into monitoring personnel by GSM.
The wireless transmitter module is wifi wireless communication modules or Zigbee wireless communication modules, and monitor center is set
There is wireless receiving module, for monitoring data to be uploaded into monitoring center.
The main control module uses ARM one-chip computer modules.
On the inwall of the blower fan stake 1, communication cable 7 is embedded with by cable casing.
The earth pressure gauge 5, ventage piezometer 6, stationary slope level 4, steel plate stressometer 8, two to accelerometer 9, incline
Angle transducer 25, the first displacement transducer 26, second displacement sensor connect measuring instrument 24 by communication cable 7,
Signal acquisition process module, signal acquisition process module realize sensor signal amplification, filtering, A/D conversion,
ARM one-chip computer modules are then input to, ARM one-chip computer modules output signal to the progress of LCD display module by analyzing and processing
It has been shown that, while by wireless transmitter module, to the wireless receiving module of monitoring center, send monitoring information, monitoring place, when
Between, position, be easy to generate historical record.
At present, the method that the settlement observation of blower fan stake 1 is generally closed the measurement of the level, it is right on the basis of each blower fan stake 1 to observe
Claim the elevation of 4 observation stations, the settling amount and the rate of settling of blower fan stake 1 are calculated by the elevation change of every observation cycle；And lead to
The differential settlement of diametrically 2 observation stations is crossed, to calculate the inclination and distortion on basis；It is bent according to the relation of settling amount and observation time
Line, calculate sedimentation coefficient of curvature.And pass through accumulative settling amount, the rate of settling and sedimentation coefficient of curvature, the stabilization of prediction blower fan stake 1
And security situation.The arrangement of settlement observation point is as shown in Figure 4, and settlement observation point is pinpointed using setting mark post mode.
At the 1st station, by electronic level, temporary bench mark is read first：Backsight on HK102, then reads
The forward reading of our station, electronic level is rotated, read the forward reading in 2# settlement points, then read the backsight in 4# settlement points
Reading.Now, 1# settlement points regard as intermediate point between reading.Then electronic level is moved to the 2nd station, 2# settlement points
As turning point TP1, the reading of 2# settlement points is backsight, before the reading that 4# settlement points also serve as turning point TP2,4# settlement point is
Depending on reading, 3# settlement points regard as intermediate point between reading.Therefore in a blower fan stake 1, it is only necessary to dispose electronic leveler twice
Instrument, you can all observation is completed by four settlement points, if 2# settlement points, 4# settlement points can not be seen simultaneously, 2# can sink
Point, 1# settlement points drop as turning point（Or 1# settlement points, 4# settlement points are as turning point）.Most three stations can complete a blower fan
The settlement measurement of stake 1.So as to save observation time, reduce measurement error；Improve monitoring accuracy.
Claims (7)
1. offshore wind power foundation absolute settlement monitoring device, it is characterised in that the device includes：Installed in blower fan stake（1）Outer wall
Multiple earth pressure gauges upper, close to pile foundation bottom（5）；Installed in blower fan stake（1）The ventage piezometer of bottom（6）；Installed in wind
Machine stake（1）Inside stationary slope level（4）, stationary slope level（4）It is encapsulated in inside inclinometer pipe；
Installed in blower fan stake（1）Top exterior walls multiple steel plate stressometers（8）；Installed in blower fan stake（1）The inwall at top
Multiple two to accelerometer（9）；The earth pressure gauge（5）, ventage piezometer（6）, stationary slope level（4）, steel plate stressometer
（8）, two to accelerometer（9）Connect measuring instrument（24）；The blower fan stake（1）It is provided with obliquity sensor（25）, inclination angle passes
Sensor（25）Connect measuring instrument（24）；The blower fan stake（1）It is provided with the first displacement transducer（26）, set on blower fan tower barrel
There are second displacement sensor, first displacement transducer（26）, second displacement sensor be all connected with measuring instrument（24）；
The device also includes an electronic level, and the electronic level is arranged symmetrically in blower fan stake for measurement（1）On
1# settlement points, 2# settlement points, 3# settlement points, the reading of 4# settlement points.
2. offshore wind power foundation absolute settlement monitoring device according to claim 1, it is characterised in that：The measuring instrument
（24）Show including signal acquisition process module, main control module, GSM message module, d GPS locating module, wireless transmitter module, LCD
Display screen module；The main control module respectively with signal acquisition process module, GSM message module, d GPS locating module, wireless transmission
Module, the connection of LCD display module.
3. offshore wind power foundation absolute settlement monitoring device according to claim 2, it is characterised in that：At the signal acquisition
Reason module includes signal amplification circuit, signal filter circuit, A/D change-over circuits, and the signal amplification circuit uses MAX4196 cores
Piece, realize the amplification of sensor detection signal；The signal filter circuit uses step low-pass ButterWorth filter circuits,
Filter out other interference noises in sensor signal；The A/D change-over circuits use ADC0808 chips, realize that sensor detects
The numeral conversion of signal.
4. offshore wind power foundation absolute settlement monitoring device according to claim 2, it is characterised in that：The GSM message mould
Block uses the TC53i modules of Siemens Company, realizes and is connected with main control module communication, for data to be sent into short message by GSM
To monitoring personnel.
5. offshore wind power foundation absolute settlement monitoring device according to claim 2, it is characterised in that：The wireless transmission mould
Block is that wifi wireless communication modules or Zigbee wireless communication modules, monitor center are provided with wireless receiving module, for inciting somebody to action
Monitoring data uploads to monitoring center.
6. offshore wind power foundation absolute settlement monitoring device according to claim 2, it is characterised in that：The main control module is adopted
With ARM one-chip computer modules.
7. offshore wind power foundation absolute settlement monitoring device according to claim 1, it is characterised in that：The blower fan stake（1）
Inwall on, communication cable is embedded with by cable casing（7）.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759780A (en) * | 2018-09-03 | 2018-11-06 | 刘绍波 | A kind of FBG monitoring device of high ferro bridge pier sedimentation |
| CN110080950A (en) * | 2018-04-19 | 2019-08-02 | 湖南工程学院 | A kind of offshore wind farm pile foundation and its stability monitoring method |
| CN113110246A (en) * | 2021-05-18 | 2021-07-13 | 山东建筑大学 | Offshore wind power generation infrastructure safety monitoring device |
| CN114812873A (en) * | 2022-03-25 | 2022-07-29 | 北京千尧新能源科技开发有限公司 | Adjustable monitoring system for offshore wind power foundation |
-
2017
- 2017-06-12 CN CN201720673913.9U patent/CN206772282U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080950A (en) * | 2018-04-19 | 2019-08-02 | 湖南工程学院 | A kind of offshore wind farm pile foundation and its stability monitoring method |
| CN110080950B (en) * | 2018-04-19 | 2020-10-23 | 湖南工程学院 | Offshore wind power pile foundation and stability monitoring method thereof |
| CN108759780A (en) * | 2018-09-03 | 2018-11-06 | 刘绍波 | A kind of FBG monitoring device of high ferro bridge pier sedimentation |
| CN108759780B (en) * | 2018-09-03 | 2024-02-20 | 刘绍波 | Fiber bragg grating monitoring device for high-speed railway pier settlement |
| CN113110246A (en) * | 2021-05-18 | 2021-07-13 | 山东建筑大学 | Offshore wind power generation infrastructure safety monitoring device |
| CN114812873A (en) * | 2022-03-25 | 2022-07-29 | 北京千尧新能源科技开发有限公司 | Adjustable monitoring system for offshore wind power foundation |
| CN114812873B (en) * | 2022-03-25 | 2023-08-04 | 北京千尧新能源科技开发有限公司 | A monitoring system with adjustable be used for marine wind-powered electricity generation basis |
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